#664096
Closest named color: Rebecca Purple (#663399). oklch(45.8% 0.137 301.6), rgb(102, 64, 150).
Aa
White text reads best on this color (7.66:1).
About this color
#664096 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.137 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.029 away. White text reads best on it, at 7.66:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.73:1 |
| White text | 7.66:1 |
Values
| HEX | #664096 |
| RGB | rgb(102, 64, 150) |
| HSL | hsl(267, 40%, 42%) |
| OKLCH | oklch(45.8% 0.137 301.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #664096 | 7.66:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #664096 | 2.73:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #664096 text on white | 7.66:1 | AAA | Lc 86.3 | Fine for body text |
| #664096 text on black | 2.73:1 | Fails | Lc -15.7 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#ECE7F7
oklch(93.7% 0.022 300.2)
-
Step 200
200
#DED3F2
oklch(88.5% 0.044 301.7)
-
Step 300
300
#CAB5ED
oklch(81% 0.081 301.8)
-
Step 400
400
#AF8CE3
oklch(70.6% 0.129 301.7)
-
Step 500
500
#9C6DDB
oklch(63.1% 0.164 301.6)
-
Step 600
600
#8752C8
oklch(55.5% 0.178 301.6)
-
Step 700
700
#7342AD
oklch(49.1% 0.165 301.7)
-
Step 800
800 (this color)
#664096
oklch(45.8% 0.137 301.6)
-
Step 900
900
#4C3170
oklch(37.7% 0.106 301.3)
-
Step 950
950
#2D1D42
oklch(27.1% 0.068 302)
#664096 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #1C5399 | 0.103 |
| Deuteranopia (no green cones) | #2A5394 | 0.094 |
| Tritanopia (no blue cones) | #5D5164 | 0.104 |
| Achromatopsia (no color) | #535353 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #664096
#664096
oklch(45.8% 0.137 301.6)
- #4E6000
#4E6000
oklch(45.7% 0.11 121.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #664096, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.029
- Blueberry #464196 ΔE 0.055
- Dark Slate Blue #483D8B ΔE 0.057
- Twilight #4E518B ΔE 0.061
- Light Eggplant #894585 ΔE 0.076
- Dusk #4E5481 ΔE 0.076
- Bluey Purple #6241C7 ΔE 0.079
- Blue With A Hint Of Purple #533CC6 ΔE 0.086
Use #664096 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.